Home / 121,208-259,264

Finding the Third Proportional to 121,208 and 259,264

Calculator

Solution

The third proportional to 121,208 and 259,264 is: 554,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,208 : 259,264 = 259,264 : x
  2. Step 2: Convert to fraction form
    121,208/259,264 = 259,264/x
  3. Step 3: Cross multiply
    121,208x = 259,264 × 259,264
  4. Step 4: Simplify right side
    121,208x = 67,217,821,696
  5. Step 5: Solve for x
    x = 67,217,821,696/121,208
  6. Step 6: Final answer
    x = 554,565.88

Related Problems

Find third proportional to 60,604 and 129,632
Half scale
Find third proportional to 242,416 and 518,528
Double scale
Find third proportional to 121,210 and 259,268
Similar ratio
Find third proportional to 181,812 and 388,896
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.